CN104773958A - Method for preparing hedenbergite glass ceramics by using lead slag - Google Patents
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Abstract
The invention provides a method for preparing hedenbergite glass ceramics by using lead slag, and belongs to the fields of environmental protection and resource recycling. According to the method, the lead slag is used as a main raw material, waste glass and coal ash are added and serve as composition adjustment raw materials, chromic oxide, nickel oxide and pyrolusite are added and serve as coloring agents, the main raw materials and the composition adjustment raw materials are respectively dried, broken and subjected to composition detection, and the main raw materials, the composition adjustment raw materials and the coloring agent are added according to a stoichiometric ratio, mixed, melted, cast, annealed, nucleated and crystallized so as to obtain the hedenbergite glass ceramics with different colors. The prepared glass ceramics meet the standards of industrial glass ceramics and building glass ceramics; and the concentration of heavy metal ions in the prepared glass ceramics is far lower than the limiting value of the leaching concentration of heavy metals, which is stated in Identification standards for hazardous wastes-Identification for extraction toxicity (GB5085.3-2007) of National Standard of the People's Republic of China. The method turns waste into wealth, is simple in technology and low in cost and solves the problem of stockpiling of industrial waste residues such as lead slag and coal ash.
Description
Technical field
The present invention relates to solid waste and prepare crystallized glass article field, particularly a kind of lead skim prepares the method for hedenbergite devitrified glass, belongs to environment protection and resource reutilization field.Be applicable to process lead fume slag, lead smelting slag, plumbous rotary kiln slag etc. and relate to the lead skim refining splicer's sequence and produce.This invention can prepare multiple color devitrified glass, meets industrial devitrified glass standard (JC/T 2097-2011) and building microcrystalline glass standard (JC/T 872-2000).
Background technology
Lead skim is made up of various metal and nonmetallic oxide compound, and the main chemical compositions of slag is SiO
2, FeO, Fe
2o
3, CaO and ZnO, account for 90% of lead skim total amount.The utilization of current lead skim mainly contains following several mode:
(1) cement of high index grog is produced: lead skim contains various ingredients needed for cement clinker, can be used as extra material replacing partial cement raw material, also can promote 3CaOSiO as mineralizer
2formation, reduce melt temperature, the firing temperature of grog, improve burnability of raw material and grog grindability, reduce energy consumption.Because its hydration activity is poor, quantitatively should control to some extent, add-on is generally only 3% ~ 5%, and utilization ratio is lower, cannot process a large amount of lead skims.
(2) pave the way: lead skim has certain hardness and wear resistance, can be used as pavior.
(3) precious metal such as copper and gold and silver reclaims: because copper and precious metal gold and silver etc. are non-volatile and stay in slag, some lead skim has certain recovery value, generally by Chemical Leaching, the precious metal such as copper and gold and silver is reclaimed, waste residue after recovery adopts simply stores up mode process, cannot solve secondary pollution.
China environmental protection portion and State Administration for Quality Supervision and Inspection and Quarantine combine on December 27th, 2013 and have issued " cement kiln synergic processing solid waste pollution control criterion " and " cement kiln synergic processing solid waste environmental protection technology specification ".Give the restricted condition of the solid waste that can enter kiln cooperative disposal.Strictly indicate in " cement kiln synergic processing solid waste pollution control criterion " " leaching of pollutent in the cement products that the cement kiln of cooperative disposal solid waste is produced, should meet relevant national standard and require ".The maximum permission dosage of each heavy metal species is strictly limited in " cement kiln synergic processing solid waste environmental protection technology specification ".After on March 1st, 2014, these two standards were formally implemented, lead skim cannot continue to add in cement kiln and carries out cooperative disposal.
Devitrified glass is also known as microcrystalline jade or glass-ceramic.It is the polycrystalline solids matrix material parent glass of specific composition being contained a large amount of crystallite phase and glassy phase through the class that coring and crystallization process obtain.It has the dual nature of glass and pottery.Compared with traditional glass, its glass transition temp, thermostability, chemical stability, mechanical property are all better; In addition, devitrified glass also has some special performances, can be used as functional materials and uses.Compared with conventional ceramic, it has the microtexture of dense uniform, pore-free, any surface finish, and size is easy to the advantages such as accurately control, can substitute industry and architectural pottery.Up to now, devitrified glass is widely used as structured material, optical material, electricity material; Simultaneously also for national defence, industry and the every field such as civilian, there is huge development prospect.In addition, because Structure of Glass Ceramic is to close, the features such as acid-fast alkali-proof is good, it has unique advantage in dangerous fixed-end forces.Compared with conventional processing technique, devitrified glass curing technology non-secondary pollution, products obtained therefrom economic worth is high, is a kind of green, the new technology that efficient, high level is value added.
Summary of the invention
The present invention seeks to be that main raw material prepares high performance microcrystal glass material with lead skim, solve the environmental problem that waste residue brings, the innoxious increment achieving waste residue utilizes.
A kind of lead skim prepares the method for hedenbergite devitrified glass, with one or several the mixture in lead fume slag, high ferro lead skim, plumbous rotary kiln slag lead skim for main raw material, cullet, flyash are composition adjustment raw material, adding one in chromic oxide, nickel oxide and pyrolusite as tinting material, obtaining hedenbergite type black, green, grey, yellow microcrystalline glass by drying fragmentation, composition detection, mixing, melting, casting, annealing, coring and crystallization operation.Specifically comprise following preparation process:
(1) fragmentation is dried: oven dry is carried out respectively to main raw material and composition adjustment raw material and is crushed to-100 orders;
(2) composition detection: the main raw material after step (1) dries fragmentation and composition adjustment raw material carry out full composition detection analysis respectively;
(3) mix: main raw material, composition adjustment material and tinting material are mixed by design mix, mixed material stoichiometric ratio is as follows: Fe
2o
3: 16-26%, SiO
2: 40-52%, CaO:10-13%, Al
2o
3: 3-5%, Na
2o:6-10%, MgO:2-4%, ZnO:2-4%, RO:3-5%, all components sum is that 100%, RO represents Cr
2o
3, NiO, MnO, K
2o, TiO
2wherein several summation;
(4) melting: material step (3) mixed is with the ramp of 5-10 DEG C/min to 1450-1550 DEG C, and insulation 2-3h, obtains glass metal;
(5) cast: the glass metal that step (4) obtains is cast in 550-600 DEG C of mould and obtains parent glass;
(6) anneal: the parent glass that step (5) obtains is incubated 30-60min at 500-650 DEG C;
(7) coring: the parent glass after step (6) being annealed is incubated 30-60min at 650-750 DEG C;
(8) crystallization: by the soaking time 1-3h at 800-900 DEG C of the parent glass after step (7) coring, obtain devitrified glass.
Be that main raw material prepares high performance microcrystal glass material with lead skim, not only can solve the environmental problem that waste residue brings, the innoxious increment that can also achieve waste residue utilizes, and creates huge economic benefit, has good environmental and social benefits.
The present invention is from the different of patent 201010152488.1 and 201410325632.5: the present invention adopts unique full waste material to prepare devitrified glass, do not need the nucleating agent adding any pure material in preparation process, form using the ferric oxide in raw material as nucleating agent the devitrified glass that hedenbergite is principal crystalline phase; The present invention to main raw material and composition adjustment material carry out the broken and composition detection of oven dry make its composition evenly, thus batching is more accurate, the devitrified glass prepared has excellent performance, meets industrial devitrified glass standard (JC/T 2097-2011) and building microcrystalline glass standard (JC/T 872-2000); Devitrified glass heavy metal prepared by the present invention also has very strong solidification, and the devitrified glass of preparation directly can be applied in association area.
Accompanying drawing explanation
Fig. 1 is the method process flow sheet that a kind of lead skim prepares hedenbergite devitrified glass.
Fig. 2 is the hedenbergite devitrified glass XRD figure spectrum prepared in embodiment 1.
Fig. 3 is the hedenbergite devitrified glass SEM collection of illustrative plates prepared in embodiment 1.
Embodiment
Embodiment 1
High ferro lead skim and flyash are carried out oven dry respectively and is crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of high ferro lead skim, flyash and pyrolusite, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1450 of 7 DEG C/min DEG C in smelting furnace, and insulation 2h obtains uniform glass metal, is cast in the mould of 580 DEG C and obtains parent glass; Parent glass is incubated 30min and anneals at 600 DEG C; Parent glass after annealing is incubated 50min and carries out coring at 700 DEG C; Parent glass after coring soaking time 2h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 26 | 40 | 12 | 5 | 6 | 2 | 4 | 5 |
Above content is mass percentage, and RO represents MnO, K
2o, TiO
2deng.
Devitrified glass is black, and ultimate compression strength is 951.67MPa, and bending strength is 114.31MPa, and microhardness is 6.24GPa, and acid corrosion-resistant is 98.6%, and alkali corrosion resistance is 99.7%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.77mg/L, Pb be 0.064mg/L, Cd is 0.001mg/L.
Embodiment 2
Plumbous rotary kiln slag and cullet are carried out oven dry respectively and is crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of plumbous rotary kiln slag, cullet and chromic oxide, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1500 of 10 DEG C/min DEG C in smelting furnace, and insulation 2h obtains uniform glass metal, is cast in the mould of 600 DEG C and obtains parent glass; Parent glass is incubated 30min and anneals at 600 DEG C; Parent glass after annealing is incubated 60min and carries out coring at 700 DEG C; Parent glass after coring soaking time 2h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 18 | 48 | 11 | 4 | 9 | 3 | 3 | 4 |
Above content is mass percentage, and RO represents Cr
2o
3, K
2o, TiO
2deng.
Devitrified glass is green, and ultimate compression strength is 800MPa, and bending strength is 131.48MPa, and microhardness is 5.98GPa, and acid corrosion-resistant is 99.6%, and alkali corrosion resistance is 99.6%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 2.18mg/L, Pb be 0.031mg/L, Cd is 0.001mg/L.
Embodiment 3
Lead fume slag, high ferro lead skim and cullet are carried out oven dry respectively and is crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of lead fume slag, high ferro lead skim, cullet and nickel oxide, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1550 of 10 DEG C/min DEG C in smelting furnace, and insulation 2.5h obtains uniform glass metal, is cast in the mould of 550 DEG C and obtains parent glass; Parent glass is incubated 40min and anneals at 600 DEG C; Parent glass after annealing is incubated 60min and carries out coring at 750 DEG C; Parent glass after coring soaking time 2h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 22 | 44 | 12 | 5 | 8 | 3 | 3 | 3 |
Above content is mass percentage, and RO represents NiO, K
2o, TiO
2deng.
Devitrified glass is grey, and ultimate compression strength is 932.95MPa, and bending strength is 110.45MPa, and microhardness is 6.09GPa, and acid corrosion-resistant is 99%, and alkali corrosion resistance is 99.4%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.89mg/L, Pb be 0.04mg/L, Cd is 0.004mg/L.
Embodiment 4
Lead fume slag, cullet and flyash are carried out respectively oven dry and be crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of lead fume slag, cullet, flyash and pyrolusite, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1460 of 7 DEG C/min DEG C in smelting furnace, and insulation 2h obtains uniform glass metal, is cast in the mould of 600 DEG C and obtains parent glass; Parent glass is incubated 35min and anneals at 600 DEG C; Parent glass after annealing is incubated 30min and carries out coring at 700 DEG C; Parent glass after coring soaking time 2h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 16 | 52 | 10 | 3 | 10 | 3 | 2 | 4 |
Above content is mass percentage, and RO represents MnO, K
2o, TiO
2deng.
Devitrified glass is yellow, and ultimate compression strength is 760MPa, and bending strength is 128.33MPa, and microhardness is 5.91GPa, and acid corrosion-resistant is 99.9%, and alkali corrosion resistance is 99.5%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.33mg/L, Pb be 0.052mg/L, Cd is 0.003mg/L.
Embodiment 5
Lead fume slag, plumbous rotary kiln slag and flyash are carried out oven dry respectively and is crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of lead fume slag, plumbous rotary kiln slag, flyash and pyrolusite, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1460 of 5 DEG C/min DEG C in smelting furnace, and insulation 3h obtains uniform glass metal, is cast in the mould of 570 DEG C and obtains parent glass; Parent glass is incubated 50min and anneals at 650 DEG C; Parent glass after annealing is incubated 40min and carries out coring at 650 DEG C; Parent glass after coring soaking time 3h at 800 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 17 | 45 | 13 | 5 | 7 | 4 | 4 | 5 |
Above content is mass percentage, and RO represents MnO, K
2o, TiO
2deng.
Devitrified glass is yellow, and ultimate compression strength is 836.34MPa, and bending strength is 112.24MPa, and microhardness is 6.54GPa, and acid corrosion-resistant is 98.8%, and alkali corrosion resistance is 99.2%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.67mg/L, Pb be 0.042mg/L, Cd is 0.002mg/L.
Embodiment 6
High ferro lead skim, plumbous rotary kiln slag, cullet and flyash are carried out oven dry respectively and is crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of high ferro lead skim, plumbous rotary kiln slag, cullet, flyash and nickel oxide, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1500 of 8 DEG C/min DEG C in smelting furnace, and insulation 2.5h obtains uniform glass metal, is cast in the mould of 550 DEG C and obtains parent glass; Parent glass is incubated 60min and anneals at 500 DEG C; Parent glass after annealing is incubated 60min and carries out coring at 650 DEG C; Parent glass after coring soaking time 1h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 20 | 43 | 13 | 4 | 10 | 2 | 3 | 5 |
Above content is mass percentage, and RO represents NiO, K
2o, TiO
2deng.
Devitrified glass is grey, and ultimate compression strength is 768.35MPa, and bending strength is 131.5MPa, and microhardness is 6.99GPa, and acid corrosion-resistant is 98.5%, and alkali corrosion resistance is 99.6%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.99mg/L, Pb be 0.038mg/L, Cd is 0.003mg/L.
Embodiment 7
Lead fume slag, high ferro lead skim, plumbous rotary kiln slag, cullet and flyash are carried out oven dry respectively and is crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of lead fume slag, high ferro lead skim, plumbous rotary kiln slag, cullet, flyash and chromic oxide, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1550 of 6 DEG C/min DEG C in smelting furnace, and insulation 2h obtains uniform glass metal, is cast in the mould of 600 DEG C and obtains parent glass; Parent glass is incubated 45min and anneals at 600 DEG C; Parent glass after annealing is incubated 45min and carries out coring at 700 DEG C; Parent glass after coring soaking time 1.5h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 20 | 48 | 13 | 3 | 6 | 2 | 2 | 3 |
Above content is mass percentage, and RO represents Cr
2o
3, K
2o, TiO
2deng.
Devitrified glass is green, and ultimate compression strength is 800.62MPa, and bending strength is 118.72MPa, and microhardness is 6.38GPa, and acid corrosion-resistant is 98.5%, and alkali corrosion resistance is 99.3%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.04mg/L, Pb be 0.055mg/L, Cd is 0.001mg/L.
Embodiment 8
High ferro lead skim, cullet and flyash are carried out respectively oven dry and be crushed to-100 orders; Material carries out composition detection respectively, calculates the amount of high ferro lead skim, cullet, flyash and pyrolusite, and mix according to following table stoichiometric ratio; Mixed material carries out melting to molten state with the ramp to 1550 of 10 DEG C/min DEG C in smelting furnace, and insulation 2h obtains uniform glass metal, is cast in the mould of 600 DEG C and obtains parent glass; Parent glass is incubated 60min and anneals at 600 DEG C; Parent glass after annealing is incubated 60min and carries out coring at 750 DEG C; Parent glass after coring soaking time 3h at 900 DEG C carries out crystallization and obtains devitrified glass.
In this embodiment, devitrified glass principal element content is as follows:
| Element | Fe 2O 3 | SiO 2 | CaO | Al 2O 3 | Na 2O | MgO | ZnO | RO |
| Content | 23 | 45 | 10 | 3 | 9 | 3 | 3 | 4 |
Above content is mass percentage, and RO represents MnO, K
2o, TiO
2deng.
Devitrified glass is black, and ultimate compression strength is 933.34MPa, and bending strength is 123.65MPa, and microhardness is 6.74GPa, and acid corrosion-resistant is 99.6%, and alkali corrosion resistance is 99.7%.
Utilize GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " to carry out Leaching test to obtained devitrified glass, Zn is 1.11mg/L, Pb be 0.028mg/L, Cd is 0.001mg/L.
Heavy metal concentration and mechanical property in the hedenbergite devitrified glass leaching characteristic identification test leach liquor prepared in each embodiment of table 1
Table 2 GB 5085.3-2007 " Hazardous wastes judging standard leaching characteristic identification " leaching characteristic identification standard value
| Sequence number | Harm component item | Constituent concentration limit value (mg/L) is endangered in leach liquor |
| 1 | Copper (in total copper) | 100 |
| 2 | Zinc (in total zinc) | 100 |
| 3 | Cadmium (in total cadmium) | 1 |
| 4 | Plumbous (in total lead) | 5 |
| 5 | Total chromium | 15 |
| 6 | Chromium (sexavalence) | 5 |
| 7 | Mercury alkylide | Must not detect |
| 8 | Mercury (in total mercury) | 0.1 |
| 9 | Beryllium (in total beryllium) | 0.02 |
| 10 | Barium (in total barium) | 100 |
| 11 | Nickel (in total nickel) | 5 |
| 12 | Total silver | 5 |
| 13 | Arsenic (in total arsenic) | 5 |
| 14 | Selenium (in total selenium) | 1 |
Claims (4)
1. a lead skim prepares the method for hedenbergite devitrified glass, it is characterized in that, employing lead skim is main raw material, cullet, flyash are as composition adjustment raw material, adding chromic oxide, nickel oxide and pyrolusite as tinting material, obtaining hedenbergite type black, green, grey, yellow microcrystalline glass by drying fragmentation, composition detection, mixing, melting, casting, annealing, coring and crystallization operation.
2. a kind of lead skim according to claim 1 prepares the method for hedenbergite devitrified glass, it is characterized in that, comprises following preparation process:
(1) fragmentation is dried: oven dry is carried out respectively to main raw material and composition adjustment raw material and is crushed to-100 orders;
(2) composition detection: the main raw material after step (1) dries fragmentation and composition adjustment raw material carry out full composition detection analysis respectively;
(3) mix: main raw material, composition adjustment material and tinting material are mixed by design mix, mixed material stoichiometric ratio is as follows: Fe
2o
3: 16-26%, SiO
2: 40-52%, CaO:10-13%, Al
2o
3: 3-5%, Na
2o:6-10%, MgO:2-4%, ZnO:2-4%, RO:3-5%, all components sum is that 100%, RO represents Cr
2o
3, NiO, MnO, K
2o, TiO
2wherein several summation;
(4) melting: by step (3) mixed material with the ramp of 5-10 DEG C/min to 1450-1550 DEG C, insulation 2-3h, obtain glass metal;
(5) cast: the glass metal that step (4) obtains is cast in 550-600 DEG C of mould and obtains parent glass;
(6) anneal: the parent glass that step (5) obtains is incubated 30-60min at 500-650 DEG C;
(7) coring: the parent glass after step (6) being annealed is incubated 30-60min at 650-750 DEG C;
(8) crystallization: by the soaking time 1-3h at 800-900 DEG C of the parent glass after step (7) coring, obtain devitrified glass.
3. a kind of lead skim according to claim 1 prepares the method for hedenbergite devitrified glass, it is characterized in that, lead skim comprises the lead fume slag, high ferro lead skim, one or several the mixture in plumbous rotary kiln slag that produce in primary lead and Production of Secondary Lead process.
4. a kind of lead skim according to claim 1 prepares the method for hedenbergite devitrified glass, it is characterized in that, the tinting material of employing is the one in chromic oxide, nickel oxide and pyrolusite.
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| CN106746681A (en) * | 2017-01-12 | 2017-05-31 | 丰城铭雪智能环保装饰材料有限公司 | Wear-resistant glass-ceramics prepared by a kind of use trade waste |
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| CN112010563A (en) * | 2020-09-17 | 2020-12-01 | 昆明理工大学 | Method for preparing microcrystalline glass by utilizing lead slag and red mud |
| CN112851121A (en) * | 2021-01-18 | 2021-05-28 | 山东龙宇玻璃有限公司 | Method for promoting resource utilization of high-speed rail tailings by using silicon slag |
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| CN105110646A (en) * | 2015-08-27 | 2015-12-02 | 陕西科技大学 | Microcrystalline glass containing pyroxferroite crystalline phase and preparation method thereof |
| CN105110646B (en) * | 2015-08-27 | 2017-06-30 | 陕西科技大学 | A kind of devitrified glass containing pyroxferroite crystalline phase and preparation method thereof |
| CN106587632A (en) * | 2016-12-14 | 2017-04-26 | 东北大学 | The method for treating waste lead-containing glass through melting method and preparing glass ceramics |
| CN106587632B (en) * | 2016-12-14 | 2019-04-26 | 东北大学 | A method of discarded flint glass is handled using fusion method and prepares devitrified glass |
| CN106746681A (en) * | 2017-01-12 | 2017-05-31 | 丰城铭雪智能环保装饰材料有限公司 | Wear-resistant glass-ceramics prepared by a kind of use trade waste |
| CN108585509A (en) * | 2018-04-27 | 2018-09-28 | 南昌大学 | A kind of devitrified glass preparation method |
| CN112010563A (en) * | 2020-09-17 | 2020-12-01 | 昆明理工大学 | Method for preparing microcrystalline glass by utilizing lead slag and red mud |
| CN112851121A (en) * | 2021-01-18 | 2021-05-28 | 山东龙宇玻璃有限公司 | Method for promoting resource utilization of high-speed rail tailings by using silicon slag |
| CN112851121B (en) * | 2021-01-18 | 2022-12-23 | 山东龙宇玻璃有限公司 | Method for promoting resource utilization of high-speed rail tailings by using silicon slag |
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